Welcome to the Migraine and Headaches Forum! This forum is for questions and support regarding migraine and headache issues such as: abdominal
migraines, headaches caused by allergies, cluster headaches,
headaches, headaches in children, migraine headaches, sinus headaches, tension headaches, visual disturbances.
Your symptoms are very suggestive of a migraine variant termed as Persistent aura without infarction. This condition is not fully understood but results in constant aura symptoms which are mostly visual but can be auditory as well.
Please refer to the links below for more information:
http://www.migraine-aura.org/content/e27891/e27265/e42285/index_en.html
http://www.migraine-aura.org/content/e25968/e26078/e26305/index_en.html
http://ihs-classification.org/en/02_klassifikation/02_teil1/01.05.03_migraine.html
Thanks